Booth

Front 1

THE NEGATIVE TERMINAL OF THE XRAY TUBE IS THE ?

Back 1

CATHODE

Front 2

THE FILAMENT IS ACTUALLY A _ OF WIRE.

Back 2

SMALL THIN COIL

Front 3

THE MATERIAL OF CHOICE IN THE FILAMENT ?

Back 3

TUNGSTEN

Front 4

IN A CONVENTIONAL DUAL FOCUS XRAY TUBE, HOW MANY FILAMENTS ARE THERE?

Back 4

2

Front 5

0NE OF THE PRIMARY CAUSES OF PREMATURE RUBE FAILURE IS THE RADIOGRAGHER'S HABIT OF

Back 5

HOLDING DOWN THE THE ROTOR SWITCH PRIOR TO MAKING AN EXPOSURE

Front 6

WHEN AN XRAY TUBE IS OPERATING AT THE MAXIMUM TUBE CURRENT FOR A GIVEN FILAMENT CURRENT, IT IS SAID TO BE OPERATING ON ? CURRENT AT THIS PIONT AN INCREASE IN KVP WILL NOT INCREASE TO TUBE MA

Back 6

SATURATION

Front 7

THE POSITIVE SIDE OF THE XRAY TUBE IS THE ?

Back 7

ANODE

Front 8

EARLY XRAY TUBES WERE CALLED CROOKES TUBES AND HAD A COLD FILAMENT.MODERN DAY TUBES ARE TERMED ?, NAMED FOR THE DEVELOPER OF THE TUBE AND HAVE THESE TYPES OF TUBES HAVE A ? FILAMENT.

Back 8

COOLIDGE,HOT

Front 9

THE METAL SHROUD(CUP) AROUND THE FILAMENT IS CALLED THE ?

Back 9

FOCUSING CUP -CHARGE ELECTRONS

Front 10

THE FOCUSING CUP IS MADE OF NICKEL AND ITS PURPOSE IS TO ?

Back 10

FOCUS ELECTRONS, NARROW THE THERMIONIC CLOUD AS IT IS DRIVEN TOWARD THE ANODE.

Front 11

THE POSITIVE SIDE OF THE XRAY TUBE IS THE ?

Back 11

ANODE (SOURCE OF XRAY PRODUCTION)

Front 12

THE ANODE ASSEMBLY CONSISTS OF THE ?,?,?

Back 12

ANODE,STATOR,ROTOR

Front 13

THE TYPE XRAY TUBE IN WHICH THE TARGET CONTINUALLY "TURNS A NEW FACE" TO THE ELECTRON BEAM DURING EXPOSURE IS CALLED A ? TUBE

Back 13

ROTATING

Front 14

THE ATOMIC NUMBER OF TUNGSTEN IS ?

Back 14

74

Front 15

WHY IS TUNGSTEN THE METAL OF CHOICE FOR THE SOURCE OF XRAY PHOTONS FOR 3 PRIMARY REASONS?

Back 15

*HIGH ATOMIC #
*HIGH MELTING PT
*DIFF TO VAPORIZE

Front 16

AFTER LONG AND HARD USE THE TARGET OF AN XRAY TUBE DEVELOPES TINY DEPRESSIONS WHICH MAY EFFECT THE OUTPUT. THIS CONDITION IS CALLED ?

Back 16

PITTING "CRATERS"

Front 17

TO ASSIST IN THE DISSIPATION OF HEAT IN HEAVY LOAD SITUATIONS, SPECIALIZED ANODES MAY HAVE THE ANODE DISK BACKED BY A THICKER LAYER OF

Back 17

MOLYBDEUM, OR GRAHITE

Front 18

SHOULD ANODES BE WARMED UP REGULARLY? IF SO WHY?

Back 18

YES, TO MAINTAIN A STRONG VACCUM INSIDE THE ENVELOP, TO PREVENT FROM CRACKING OR PITTING

Front 19

THE PHYSICAL AREA OF THE FOCAL TRACK THAT IS IMPACTED IS TERMED THE ? WHILE THE AREA THAT IS PROJECTED OUT OF THE TUBE TOWARD THE OBJECT BEING RADIOGRAPHED IS TERMED ?

Back 19

ACTUAL FOCAL SPOT
EFFECTIVE FOCAL SPOT

Front 20

THE PART OF THE ANODE WHERE THE HIGH-VOLTAGE ELECTRONS BOMBARD IS TERMED THE ?

Back 20

TARGET FOCUS, FOCAL SPOT, OR FOCAL PIONT

Front 21

AS THE ANODE TARGET ANGLE INCREASES, WHAT HAPPENS TO THE EFFECTIVE FOCAL-SPOT SIZE?

Back 21

IT INCREASES, THEY WORK HAND IN HAND

Front 22

THE EFFECTIVE SPOT IS ? THAN THE ACTUAL FOCAL SPOT SIZE?

Back 22

SMALLER, "LINE FOCUS PRINCIPLE"

Front 23

THE ANGLE OF THE ANODES RANGE FROM ? TO ? DEGRESS WITH ? DEGREES BEING THE MOST COMMON DIAGNOSTIC RADIOGRAPHY TARGET ANGLE.

Back 23

7,17,12

Front 24

A VERY SMALL FOCAL SPOT, USUALLY A FRACTION OF A MILLIMETER IN SIZE IS TERMED A ?

Back 24

FRACTIONAL FOCAL SPOT
.1-3 MM "SPECIAL PROCEDURE"

Front 25

FOR THE BEST DETAIL, WHAT SIZE FOCAL SPOT MUST BE USED ?

Back 25

SMALL

Front 26

THE HEEL EFFECT RESULTS IN HIGHER INTENSITY XRAY ON THE ? SIDE OF THE CENTRAL AXIS OF THE XRAY BEAM

Back 26

CATHODE

Front 27

WHAT IS THE FUNCTION OF THE STATOR?

Back 27

TO TURN IN THE ANODE

Front 28

THE COMMON ROTATING ANODES REVOLVE AT ? REVOLUTIONS PER MIN WHICH HIGH-SPEEDING ROTATING ANODES OPERATE AT ? RPM TO ASSIST IN DISSIPATING HEAT.

Back 28

3,200-3,600
10,000-12,000

Front 29

THE PRIMARY FUNCTION OF THE ENVELOP IS TO ? AS THIS GREATLY INCREASES THE EFFICIENCY OF THE TUBES OPRERTATION

Back 29

CREATE AND MAINTAIN A VACCUM *ELIMINATE TUNGSTEN

Front 30

XRAYS EMITTED FROM THE ANODE ARE EMITTED IN ALL DIRECTIONS, AND IS REFERRED TO AS ?

Back 30

ISTROPICALLY

Front 31

ANY PHOTONS THAT ESCAPE THE PROTECTIVE HOUSING EXCEPT AT THE PORT ARE TERMED ?

Back 31

LEAKAGE RADIATION

Front 32

LEAKAGE RADIATION MUST NOT EXCEED ?

Back 32

100MR/HR AT 1 METER AWAY

Front 33

AN XRAY TUBE IS USUALLY IMMERSED IN OIL FOR THE PURPOSE ? AND ?

Back 33

ABSORBS HEAT, INSULATE HEAT

Front 34

THE SAFE LIMIT WITHIN WHICH A TUBE MAYBE OPERATED CAN DETERMINED BY MAKING USE OF THE ?

Back 34

TUBE RADIATING CHART

Front 35

HOW ARE HEAT UNITS CALCULATED?

Back 35

KVP*MA*TIME*1 1.35 1.41 1.45

Front 36

THE MAXIUMUM SAFE EXPOSURE FOR AN XRAY TUBE IS ? WITH A SMALL FOCUS THAN WITH A LARGE ONE?

Back 36

LESSER

Front 37

THE ACTUAL TARGET OF AN XRAY TUBE IS COMPOSED OF WHAT SUBSTANCES?

Back 37

TUNGSTEN

Front 38

THE HIGH VOLTAGE CURRENT PASSES THRU AN XRAY TUBE IN WHICH DIRECTION?

Back 38

CATHODE TO ANODE

Front 39

AN INCREASE IN KV ACROSS THE XRAY TUBE RESULTS IN ?

Back 39

RADIATION OF SHORTER WAVE LENGTHS

Front 40

THAT PORTION OF THE XRAY TUBE CONSISTING OF A METAL FILAMENT THAT EMITS ELECTRONS WHEN HEATED IS THE ?

Back 40

CATHODE

Front 41

THE QUANTITY OF XRAYS RECEIVED AT A GIVEN PIONT IS PRIMARILY DEPENDENT UPON

Back 41

THE MILLIAMPERE SECONDS OR mA

Front 42

THE SOURCE OF ELECTRONS IN A ROTATING ANODE TUBE IS TUBE ?

Back 42

FILAMENT

Front 43

IN A XRAY TUBE, IF A KV IS APPLIED, THE ELECTRONS ARE DRIVEN TO THE ?

Back 43

ANODE

Front 44

THE ABILITY OF THE ANODE TO DISSIPATE HEAT IS MEASURED IN:

Back 44

HEAT UNITS

Front 45

THE COOLING CHARACTERISTICS OF AN XRAY TUBE ARE REFERRED TO AS THE ?

Back 45

HEAT DISSIPATION RATE